Pupil Expansion Device

摘要

A flexible pupil expansion ring having a U-shaped groove formed along an external diameter of the ring to substantially fully engage and support an iris of a patient's eye, at least one positioning plate extending from a leg of the U-shaped groove, and having an opening within the plate to assist with positioning of the ring with the iris engaged within the groove, and an expansion mechanism for moving the flexible ring from an engagement position to an expansion position enlarging the diameter of the groove and engaged iris.

主权项

1. A collapsible ring which is initially inserted into a patient's eye through a narrow incision in a substantially collapsed cylindrical insertion condition, and is expanded using an expansion mechanism into a circular support ring having a groove formed along an external diameter of the ring to substantially fully engage with an iris of a patient's eye, and using at least one positioning plate extending from the ring to assist with expansion of the ring with the iris engaged within the groove.